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dts: Added overlay for gpio_ir_recv driver

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This commit is contained in:
Holger Steinhaus
2015-11-14 18:37:43 +01:00
committed by popcornmix
parent 9bd52d710b
commit 6137f86ef4
3 changed files with 62 additions and 0 deletions
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1
arch/arm/boot/dts/overlays/Makefile
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@@ -17,6 +17,7 @@ dtb-$(RPI_DT_OVERLAYS) += at86rf233-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += bmp085_i2c-sensor-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += dht11-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += enc28j60-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += gpio-ir-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += gpio-poweroff-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += hifiberry-amp-overlay.dtb
dtb-$(RPI_DT_OVERLAYS) += hifiberry-dac-overlay.dtb

16
arch/arm/boot/dts/overlays/README
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@@ -209,6 +209,22 @@ Params: int_pin GPIO used for INT (default 25)
speed SPI bus speed (default 12000000)
Name: gpio-ir
Info: Use GPIO pin as rc-core style infrared receiver input. The rc-core-
based gpio_ir_recv driver maps received keys directly to a
/dev/input/event* device, all decoding is done by the kernel - LIRC is
not required! The key mapping and other decoding parameters can be
configured by "ir-keytable" tool.
Load: dtoverlay=gpio-ir,<param>=<val>
Params: gpio_pin Input pin number. Default is 18.
gpio_pull Desired pull-up/down state (off, down, up)
Default is "down".
rc-map-name Default rc keymap (can also be changed by
ir-keytable), defaults to "rc-rc6-mce"
Name: gpio-poweroff
Info: Drives a GPIO high or low on reboot
Load: gpio-poweroff,<param>=<val>

45
arch/arm/boot/dts/overlays/gpio-ir-overlay.dts Normal file
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@@ -0,0 +1,45 @@
// Definitions for ir-gpio module
/dts-v1/;
/plugin/;
/ {
compatible = "brcm,bcm2708";
fragment@0 {
target-path = "/";
__overlay__ {
gpio_ir: ir-receiver {
compatible = "gpio-ir-receiver";
// pin number, high or low
gpios = <&gpio 18 1>;
// parameter for keymap name
linux,rc-map-name = "rc-rc6-mce";
status = "okay";
};
};
};
fragment@1 {
target = <&gpio>;
__overlay__ {
gpio_ir_pins: gpio_ir_pins {
brcm,pins = <18>; // pin 18
brcm,function = <0>; // in
brcm,pull = <1>; // down
};
};
};
__overrides__ {
// parameters
gpio_pin = <&gpio_ir>,"gpios:4",
<&gpio_ir_pins>,"brcm,pins:0",
<&gpio_ir_pins>,"brcm,pull:0"; // pin number
gpio_pull = <&gpio_ir_pins>,"brcm,pull:0"; // pull-up/down state
rc-map-name = <&gpio_ir>,"linux,rc-map-name"; // default rc map
};
};